MAC addresses, collision detection, exponential backoff and similar low level protocols that mediate access to the physical layer are part of the Data Link Layer.

MAC 地址、测、指数退避和调解对物理的访问的类似低级协议是数据链路的一部分。

Number one category is of the people who see  you in the misery in pain and the backoff, they're like we are gone. We can't handle  it. I respect them for their honesty.

第一类是那些在痛苦和退缩中看到你的，就像我走了一样。 我无法处理。 我尊重的诚实。